Oil-stove



(No Model.)

W. H. WILDER'.

' OIL srov, v No. 486,311'. Patented Nov. 15, `1892.

'Nrrnn raras PATENT Futon.

VILLIAM H. WILDER, OF NORTHAMPTN, MASSACHUSETTS.

O l L S T O V E SPECIFICATION forming part of Letters Patent No. 486,311, dated November 15, 1892.

Application led July Z1, 1892. Serial No. 440,816. (No model.)

T0 all whom t may concern,.-

Be it known that l, WILLIAM H. WILDER,

a citizen of the United States of America, re-

siding at Northa1npton,in thecounty of Hampshire and State of' Massachusetts, have invented certain new and useful Improvements in Oil-Stoves, of which the following is a specification, reference being had therein to the accompanying drawing.

It is the object of my invention to provide a gas or oil stove for heating or cooking purposes, in which the gases of combustion and the pure heated air will be separated from each other, but yet will react one upon the other, so that the gases of combustion before being discharged from the stove will be relieved of much of their heat by reason of the passage of the pure air through the stove and thus be suppressed or rendered less active, the pure air on the other hand being highly heated and put into rapid and active circulation, it acting to extract the heat from the gases of combustion and increasing this action in proportion to the amount of heat extracted, and consequently tending constantly to suppress or render inert the said gases in proportion to their heat and tendency to be active and in rapid circulation.

It is my object, further, to provide an oil or gas stove which may be used within a room without chimney connections, the gases of combustion being suppressed or rendered latent and then deflected when discharged from the stove downwardly toward the ioor.

In the accompanying drawing the figure represents a central vertical section of a stove as improved by me.

The base l is supported by the legs 2, and has therein the reservoir 4, from which the wick-tube and burner project upwardly, this being of the round or Argand-burner type. Above the base is the combustion-chamber 5, separated from the base or reservoir-chamber by a transverse partition 6. The combustionchamber is surmounted by a top 7, having an outwardly and downwardly projecting Iiange 7X, a space 48 being left between the said fiange and the top edge of the combustion-chamber wall. Within the burner and concentric therewith is the central pure-air tube 9, communicating with the air at the I bottom of the stove through the reservoir. This tube connects with the upper central tube l0 within the combustion-chamber, the

in diameter than the upper tube, but is concentric therewith and has a ange 12X. This connection separates completely the pure air from the combustion-chamber, the joint between the two tubes and adjacent to the flame serving effectively to make a perfect separation, while at the same time it is acted upon fully by the said flame to heat the pure air, and for the better heating effect. The cap or ange connection l2 is made to overhang slightly, as shown, so as to act as a spreader and at the same time be in position to be acted upon by the heat. The combustionchamber is preferably formed separate from the base portion carrying the reservoir-chamber and the lower section of the central tube, and the flanged or capped connection l1 l2 is such that the parts may be readily tted together or removed.

Through the combustion-chamber and entirely within the same is a series of pureair tubes 13, which are carried by the said combustion-chamber to be movable therewith. They open at their lower ends into the reservoir-chamber or base and at their upper ends through the top of the stove. These tubes extend concentrically about the burner and about the upper central pure-air tube or drum, leaving an annular space above the burner into which the flame and heat passes directly to circulate about the central tube and about the series of pure-air tubes. The heat acting upon these inner and outer tubes causes a rapid circulation of the pure air. This cold pure air extracts the heat from the gases of combustion, which are cooled as theyapproach the discharge-opening, and thus are suppressed and rendered less active. By reason of having the series of tubes entirely within the combustion-chamber they-may be acted upon on all sides and no heat is lost from them by radiation. The gases of combustion also coming in contact with all the surfaces of the pure-air tubes is cooled most effectively. I have shown the discharge for the stove opening directly to the surrounding air below the outwardly-projecting flange, and I prefer to incline this downwardly in order to deflect the latent gases of combustion downward and th us elect a better separation from the heated pure air, which rises throughthe top of the stove above the said flange, being nnobstructed to pass upward and circulate freely. A flange 14 extends around the top above the upper openings, and this increases the separation.

It will be understood that the air-tubes may open into a drum, il. desired, at the top of the stove.

The pure-air tubesinstead of passing down into the reservoir-chamber, may be bent aside, as shown at 14 in dotted lines,to open through the wall of the combustion-chamber above the flame.

I claiml. The combination, in an oil-stove, of the base, the burner, the combustion chamber above the burner, the central pure-air tube extending through the burner andV upward through the combustion-chamber and closed therefrom, and the series of tubes located en tirely within the combustion -chamber and around the burner, forming an annular corn bustion-space between itself and the central tube, substantially as described.

2. In combination, the base, the burner, the combustion-chamber, the central tube extending through the burner and the combustionchamber and closed therefrom, the series of tubes around the burner and entirely within the combustion-space, all of said tubes opening through the top of the stove, the said combustion chamber having a lateral discharge opening or openings, substantially as described.

3. In combination, in an oil-stove, the base, the burner, the combustion-chamber having a lateral opening at its top and an inclined flange for directing the discharge of the gases downward, the up wardly-extending flange, the central tube extending through the burner and combustion-chamber, and the series of tubes about the burner and entirely within the combustion-chamber, said tubes opening through the top of the stove at the base ot' the upwardly-projecting flange, substantially as described.

In testimony whereof I aix inysignature in A presence of two witnesses.

WILLIAM II. WILDER.

Witnesses:`

BYRON E. ELDRED, LoUIs HENRY WARNER. 

